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[Acquired stuttering associated with callosal infarction: a case report].

T Tsumoto1, K Nishioka, K Nakakita

  • 1Department of Neurosurgery, Minami Wakayama National Hospital, Japan.

No Shinkei Geka. Neurological Surgery
|February 20, 1999
PubMed
Summary

This study reports a case of acquired stuttering in a 66-year-old man, linked to a cerebral infarction affecting the corpus callosum and right anterior cerebral artery. The patient

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Area of Science:

  • Neuroscience
  • Neurology
  • Speech Pathology

Background:

  • Acquired stuttering is a rare condition resulting from neurological damage.
  • Understanding the precise neural correlates of acquired stuttering is crucial for diagnosis and treatment.

Observation:

  • A 66-year-old man presented with acquired stuttering, characterized by initial syllable repetitions, left leg paresis, and left-hand apraxia.
  • The patient exhibited no aphasia, agraphia, or crossed optic ataxia.
  • Neurological examination revealed cerebral infarction in the corpus callosum truncus and right anterior cerebral artery occlusion.

Findings:

  • Magnetic Resonance Imaging (MRI) identified cerebral infarction in the corpus callosum truncus.
  • Angiography confirmed occlusion of the right anterior cerebral artery.

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  • 99mTc HM-PAO SPECT indicated reduced blood flow in the right frontal lobe.
  • The patient's speech dysfluency improved within six months.

    • Implications:

    • The findings suggest that acquired stuttering may result from a combination of hemispheric and callosal lesions.
    • This case highlights the complex interplay between brain structure, vascular supply, and speech production.
    • Further research into the neuroanatomy of acquired stuttering is warranted.